linux-stable/Documentation/s390/qeth.txt
Eugene Crosser 9c23f4dab1 qeth: OSA version of SETBRIDGEPORT command
OSA Ethernet hardware is introducing BRIDGEPORT functionality
similar (but not identical) to HiperSockets BRIDGEPORT. This
patch makes HiperSockets BRIDGEPORT related sysfs attributes
and udev events work with OSA hardware too.

Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-18 12:14:17 -04:00

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IBM s390 QDIO Ethernet Driver
OSA and HiperSockets Bridge Port Support
Uevents
To generate the events the device must be assigned a role of either
a primary or a secondary Bridge Port. For more information, see
"z/VM Connectivity, SC24-6174".
When run on an OSA or HiperSockets Bridge Capable Port hardware, and the state
of some configured Bridge Port device on the channel changes, a udev
event with ACTION=CHANGE is emitted on behalf of the corresponding
ccwgroup device. The event has the following attributes:
BRIDGEPORT=statechange - indicates that the Bridge Port device changed
its state.
ROLE={primary|secondary|none} - the role assigned to the port.
STATE={active|standby|inactive} - the newly assumed state of the port.
When run on HiperSockets Bridge Capable Port hardware with host address
notifications enabled, a udev event with ACTION=CHANGE is emitted.
It is emitted on behalf of the corresponding ccwgroup device when a host
or a VLAN is registered or unregistered on the network served by the device.
The event has the following attributes:
BRIDGEDHOST={reset|register|deregister|abort} - host address
notifications are started afresh, a new host or VLAN is registered or
deregistered on the Bridge Port HiperSockets channel, or address
notifications are aborted.
VLAN=numeric-vlan-id - VLAN ID on which the event occurred. Not included
if no VLAN is involved in the event.
MAC=xx:xx:xx:xx:xx:xx - MAC address of the host that is being registered
or deregistered from the HiperSockets channel. Not reported if the
event reports the creation or destruction of a VLAN.
NTOK_BUSID=x.y.zzzz - device bus ID (CSSID, SSID and device number).
NTOK_IID=xx - device IID.
NTOK_CHPID=xx - device CHPID.
NTOK_CHID=xxxx - device channel ID.
Note that the NTOK_* attributes refer to devices other than the one
connected to the system on which the OS is running.